20669040

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1367}}^1$

素因数の和:1396

約数の個数: 160

約数和(自身を含む): 81423360

約数和(自身を除く): 60754320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1367, 1512, 1680, 1890, 2160, 2520, 2734, 3024, 3780, 4101, 5040, 5468, 6835, 7560, 8202, 9569, 10936, 12303, 13670, 15120, 16404, 19138, 20505, 21872, 24606, 27340, 28707, 32808, 36909, 38276, 41010, 47845, 49212, 54680, 57414, 61515, 65616, 73818, 76552, 82020, 86121, 95690, 98424, 109360, 114828, 123030, 143535, 147636, 153104, 164040, 172242, 184545, 191380, 196848, 229656, 246060, 258363, 287070, 295272, 328080, 344484, 369090, 382760, 430605, 459312, 492120, 516726, 574140, 590544, 688968, 738180, 765520, 861210, 984240, 1033452, 1148280, 1291815, 1377936, 1476360, 1722420, 2066904, 2296560, 2583630, 2952720, 3444840, 4133808, 5167260, 6889680, 10334520, 20669040]

約数ペア:

[(1, 20669040), (2, 10334520), (3, 6889680), (4, 5167260), (5, 4133808), (6, 3444840), (7, 2952720), (8, 2583630), (9, 2296560), (10, 2066904), (12, 1722420), (14, 1476360), (15, 1377936), (16, 1291815), (18, 1148280), (20, 1033452), (21, 984240), (24, 861210), (27, 765520), (28, 738180), (30, 688968), (35, 590544), (36, 574140), (40, 516726), (42, 492120), (45, 459312), (48, 430605), (54, 382760), (56, 369090), (60, 344484), (63, 328080), (70, 295272), (72, 287070), (80, 258363), (84, 246060), (90, 229656), (105, 196848), (108, 191380), (112, 184545), (120, 172242), (126, 164040), (135, 153104), (140, 147636), (144, 143535), (168, 123030), (180, 114828), (189, 109360), (210, 98424), (216, 95690), (240, 86121), (252, 82020), (270, 76552), (280, 73818), (315, 65616), (336, 61515), (360, 57414), (378, 54680), (420, 49212), (432, 47845), (504, 41010), (540, 38276), (560, 36909), (630, 32808), (720, 28707), (756, 27340), (840, 24606), (945, 21872), (1008, 20505), (1080, 19138), (1260, 16404), (1367, 15120), (1512, 13670), (1680, 12303), (1890, 10936), (2160, 9569), (2520, 8202), (2734, 7560), (3024, 6835), (3780, 5468), (4101, 5040)]